论文标题
准圆形非不必要的二进制黑洞合并的重力波亚辅助谐波的时域现象学模型
Time domain phenomenological model of gravitational wave subdominant harmonics for quasi-circular non-precessing binary black hole coalescences
论文作者
论文摘要
在这项工作中，我们介绍了时间域现象学模型的延伸，用于重力波信号的iMrphenomt来自二进制黑洞结合的引力波信号，包括$（l = 2，m = \ pm 1）$，$（l = 3，m = 3，m = \ pm 3）我们还改进了主要$（L = 2，M = \ pm 2）$模式的模型，并讨论$（L = 3，M = \ PM 2）$模式的模式混合。该模型被校准为完整的爱因斯坦方程式至质量比18的数值相对论解决方案，并以较高的质量比的数值溶液和Teukolsky方程的数值解。这项工作补充了最新一代的传统频域现象学模型（Imrphenomx），并提供了新的途径，以开发来自通用紧凑型二进制文件的引力波信号的计算高效模型。
In this work we present an extension of the time domain phenomenological model IMRPhenomT for gravitational wave signals from binary black hole coalescences to include subdominant harmonics, specifically the $(l=2, m=\pm 1)$, $(l=3, m=\pm 3)$, $(l=4, m=\pm 4)$ and $(l=5, m=\pm 5)$ spherical harmonics. We also improve our model for the dominant $(l=2, m=\pm 2)$ mode and discuss mode mixing for the $(l=3, m=\pm 2)$ mode. The model is calibrated to numerical relativity solutions of the full Einstein equations up to mass ratio 18, and to numerical solutions of the Teukolsky equations for higher mass ratios. This work complements the latest generation of traditional frequency domain phenomenological models (IMRPhenomX), and provides new avenues to develop computationally efficient models for gravitational wave signals from generic compact binaries.
